YT Jeffsy 2018 announced – all specs and prices
The YT JEFFSY has been one of the most popular trail bikes since it first hit the market in 2016, last year YT added a 27.5″ version. For 2018 the frame of both JEFFSYs remains unchanged, but the German direct sales brand has fine-tuned the model lineup with updated specs and some unique component choices.
Frames remain unchanged
Apart from some new colour options, the frame of both the JEFFSY 29 and the JEFFSY 27 remain unchanged. The most noticeable difference between the two, apart from the wheel size, is the increased travel on the JEFFSY 27 (150 mm) over the JEFFSY 29 (140 mm), with the top-of-the-line JEFFSY 27 CF Pro Race sporting an additional 10 mm over the more affordable options. The JEFFSY 27 uses metric sized shocks, which means that the RockShox equipped builds come with the Deluxe shock rather than the Monarch.
Eleven+ Drivetrain
The biggest change over last years models comes in form of a unique drivetrain setup. All Jeffsy models come with Shimano shifters and derailleurs, combined with the 1×11 E*thirteen TRS+ cassette featuring 511% gear range. YT uses cranksets from E*thirteen or Race Face to accompany the drivetrain that they’ve labelled Eleven+. YT argues that this setup is not only lighter than an SRAM Eagle drivetrain but also more durable and easier to adjust. There are no more two-by builds anymore.
No more Onza tires
The 2018 JEFFSY models no longer rely on Onza tires. The carbon models come with E*thirteen tires, the 29er with the TRS+ front and rear and the JEFFSY 27 with the TRS+ in the rear and the softer TRSR on the front. The aluminium models roll on MAXXIS rubber, Minion DHR IIs on the JEFFSY 29 and Highroller IIs on the 27.5 version.
Prices
Most of the models have seen a price increase over last year’s equivalents. The CF Pro Race goes up by € 500, now costing € 4,999 compared to € 4,499 in 2017. On the low end of the spectrum, the most affordable model is now the JEFFSY AL for € 2,299.
YT JEFFSY 29 Model Overview
YT JEFFSY 29 CF Pro Race
Fork FOX 34 Float Factory 140 mm
Rear shock FOX Float DPX2 Factory 140 mm
Brakes SRAM Guide Ultimate
Shifter/Derailleur Shimano XTR
Cassette E*thirteen TRS+
Crankset E*thirteen TRS Race SL Carbon
Seatpost FOX Transfer Factory
Stem Renthal Apex 35 50 mm
Bars Renthal Fatbar Carbon 35 800 mm
Wheels E*thirteen TRS Race SL Carbon
Tires E*thirteen TRS+ 2.35
Weight 12.50 kg
Price € 4,999
YT JEFFSY 29 CF Pro
Fork FOX 34 Float Performance Elite 140 mm
Rear shock FOX Float DPS Performance 140 mm
Brakes SRAM Guide RSC
Shifter/Derailleur Shimano XTR
Cassette E*thirteen TRS+
Crankset Race Face NEXT R
Seatpost FOX Transfer Performance
Stem Race Face Turbine R 50 mm
Bars Race Face NEXT R 35 780 mm
Wheels E*thirteen TRS+
Tires E*thirteen TRS+ 2.35
Weight 12.90 kg
Price € 3,999
YT JEFFSY 29 CF
Fork RockShox Pike RCT3 140 mm
Rear shock RockShox Monarch RT3 140 mm
Brakes SRAM Guide RS
Shifter/Derailleur Shimano XT
Cassette E*thirteen TRS+
Crankset Race Face Turbine
Seatpost E*thirteen TRS+
Stem Race Face Turbine R 50 mm
Bars Race Face Turbine R 35 780 mm
Wheels E*thirteen TRS
Tires E*thirteen TRS+ 2.35
Weight 12.90 kg
Price € 3,499
YT JEFFSY 29 AL COMP
Fork RockShox Pike RC 140 mm
Rear shock RockShox Monarch RT 140 mm
Brakes SRAM Guide RS
Shifter/Derailleur Shimano SLX
Cassette E*thirteen TRS+
Crankset Race Face Turbine
Seatpost E*thirteen TRS+
Stem Race Face Turbine R 50 mm
Bars Race Face Turbine R 35 780 mm
Wheels DT Swiss M 1900
Tires MAXXIS Minion DHR II 2.4 WT
Weight 13.20 kg
Price € 2,799
YT JEFFSY 29 AL
Fork FOX 34 Float Rhythm 140 mm
Rear shock FOX DPS Performance 140 mm
Brakes SRAM Guide R
Shifter/Derailleur Shimano SLX
Cassette E*thirteen TRS+
Crankset Race Face Aeffect SL
Seatpost E*thirteen TRS+
Stem Race Face Aeffect R 50 mm
Bars Race Face Aeffect R 35 780 mm
Wheels DT Swiss M 1900
Tires MAXXIS Minion DHR II 2.4 WT
Weight 13.20 kg
Price € 2,299
YT JEFFSY 27 Model Overview
YT JEFFSY 27 CF Pro Race
Fork FOX 34 Float Factory 160 mm
Rear shock FOX Float DPX2 Factory 160 mm
Brakes SRAM Guide Ultimate
Shifter/Derailleur Shimano XTR
Cassette E*thirteen TRS+
Crankset E*thirteen TRS Race SL Carbon
Seatpost FOX Transfer Factory
Stem Renthal Apex 35 50 mm
Bars Renthal Fatbar Carbon 35 800 mm
Wheels E*thirteen TRS Race SL Carbon
Tires E*thirteen TRSR/TRS+
Weight 12.40 kg
Price € 4,999
YT JEFFSY 27 CF Pro
Fork FOX 34 Float Performance Elite 150 mm
Rear shock FOX Float DPS Performance 150 mm
Brakes SRAM Guide RSC
Shifter/Derailleur Shimano XTR
Cassette E*thirteen TRS+
Crankset Race Face NEXT R
Seatpost FOX Transfer Performance
Stem Race Face Turbine R 50 mm
Bars Race Face NEXT R 35 780 mm
Wheels E*thirteen TRS+
Tires E*thirteen
Weight 12.60 kg
Price € 3,999
YT JEFFSY 27 CF
Fork RockShox Pike RCT3 150 mm
Rear shock RockShox Deluxe RT3 150 mm
Brakes SRAM Guide RS
Shifter/Derailleur Shimano XT
Cassette E*thirteen TRS+
Crankset Race Face Turbine
Seatpost E*thirteen TRS+
Stem Race Face Turbine R 50 mm
Bars Race Face Turbine R 35 780 mm
Wheels E*thirteen TRS
Tires E*thirteen TRSR/TRS+ 2.35
Weight 12.80 kg
Price € 3,499
YT JEFFSY 27 AL COMP
Fork RockShox Pike RC 150 mm
Rear shock RockShox Deluxe RT 150 mm
Brakes SRAM Guide RS
Shifter/Derailleur Shimano SLX
Cassette E*thirteen TRS+
Crankset Race Face Turbine
Seatpost E*thirteen TRS+
Stem Race Face Turbine R 50 mm
Bars Race Face Turbine R 35 780 mm
Wheels DT Swiss M 1900
Tires MAXXIS Highroller II 2.4
Weight 13.30 kg
Price € 2,799
YT JEFFSY 27 AL
Fork FOX 34 Float Rhythm 150 mm
Rear shock FOX DPS Performance 150 mm
Brakes SRAM Guide R
Shifter/Derailleur Shimano SLX
Cassette E*thirteen TRS+
Crankset Race Face Aeffect SL
Seatpost E*thirteen TRS+
Stem Race Face Aeffect R 50 mm
Bars Race Face Aeffect R 35 780 mm
Wheels DT Swiss M 1900
Tires MAXXIS Highroller II 2.4
Weight 13.80 kg
Price € 2,299
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Words: Photos: YT Industries, Johan Hjord
